Pulverizing and separating machine.



E. J. STECKLE.

PULVERIZING AND SEPARATING MACHINE.

APPLICATION FILED MAY 9. 1912- Patented Nov. 2; 1915'.

Q f@d,

- "oivrrn EDWARD J. STECKLE,

s'rarss OF DIXON, ILLINOIS, ASSIGNOR OF ONE-THIRD T0 CHARLES-U.

REILLY, OF SYRACUSE, INDIANA, AND ONE-THIRD 'TO WILLIAM E. WUE R'II-I, 'OF

DIXON, ILLINOIS. I

PULVERIZING AND SEPARATING MACHINE.

T 0 all whom it may concern Be it known that I, EDWARD J. STECKLE, a citizen of the United States, residing at Dixon, in the county of Lee and State of Illinois, have invented a certain new and useful Improvement in Pulverizing and Separating Machines, of which the followside in part-section with parts broken away.

The open base A which carries the bearings A A? supports the annular'ring or frame A having the closed bottom A and centrally located upwardly extending hollow cylinder A The crushing ring A, having the inwardly disposed spherically curved surface A rests upon the flange A adjacent the long edge of the frame A and is held in position by the flange A from which projects upwardly the frame A The shaft B is rotatably mounted in the bearings A A and in a bearing B supported at the top of the frame A. The pulley B is keyed to the shaft B between the bearings A A and the said shaft carries rigidly attached thereon the hollow downwardly depending sleeve B which supports the sleeve A The drivingspider B is mounted on the sleeveB and carries the pushers B in engagement with the balls B, which balls are forced outwardly by centrifugal force'against the curves A. and are supported at their bottom by the flange B projecting inwardly from thering A. The arms B which project upwardly from the spider or pusher B, carryingthe inclined vanes or fans B".

The conical hood C which is supported by the frame A is provided with the upwardly extending cylindrical extension C in whichis located the fixed sleeve C communicating with the exhaust pipe G and carrying the slidably mounted sleeve 0 The screw conveyer C'is supported by the conical hood C at the other end of the frame Specification of Letters Patent. Application filed May 9, 1912. Sria1No.'696,061.

Patented Nov. 2,1915.

A and discharges by" means of the spout C downwardly toward'the crushing zone being fed from'any suitable supply source not indicated. The spiral conduit C which is disposed about the outer portion of the conical hood G and is of constantly increasing cross sectional area communicates with the interior of the hood'by the inclined passage ways C which discharge downwardly toward the crushing zone. The discharge conduit Xv which leads from the top of the conical hood or'separating chamber C discharges into any suitable dust and air separator not shown the air from which is dis- 5 charged back into the spiral conduit C 'and thence to the conical chamber by any suit-' able means not shown.

The conical deflector D whoseapex points upwardly toward the top of the conical hood C carries the truncated conical baffle wall D extending upwardly, this wall being attached to the cone D by the angles D The straps D arranged'about the outer edge of the wall D suspend it and the conical baffle from the top C being provided with perforations D in opposition to perforations D in'the hangers D riveted to the top bolts D engaging the perforations in the straps "and hangers and -may be positioned so as to vary the height at which the'baflle and conical wall is suspended. The conical wall D is concentric with but separated from the baffle plate D ,'thus forming an annular passageway D between them. A flexible skirt sleeve or suitable material which will preventthe upward passage of the air through this annular channel, but which will swing clear to permit the downward passage of the material along thesurface of the cone D, is suspended from the conical wall and hangs down toward the cone D in such manner that its lower edge rests upon the cone or deflector D. Thus the column of air passing upwardly through the chamber is com pelled' to pass around the annular wall D but the material depositedupon the upper surface of the annular wall D or the cone 1) may pass freely back into the lower portion of the chamber.

I have not deemed it necessary-to indicate the means for separating the dust and the air after they have been *discharged together from the crushing and separating chamber because any suitable means can be used without affecting in any way my device.

It will be evident that while I have shown in my drawing an operative device still many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention.

The material to be crushed or pulverized is fed to the machine by the screw conveyer, which discharges it into the hood above the rotating. fans. This material, of course, .drops down into the crushing zone and is there pulverized between the crushing ring or the rotating balls which are held centrifugally against the ring by centrifugal force to enable them to perform this crushing action. A blast of air is driven by means not shown through the passages here illustrated into the spiral conduit or passage surrounding the hood C and this blast of air is discharged through the passages interposed between this spiral conduit and the interior of the hood C. The blast of air is by the arrangement and proportion of the parts compelled to discharge substantially equally at all points about the circumference of the crushing Zone and passes across the top of the crushing zone, coming in contact with the crushed material as it is violently agi tated by the crushing balls. This blast or air current will pick up from the crushing surfaces of the zone these finer particles of the reduced material which have been sulficiently reduced and leave for further crushing the heavier particles too'heavy or too large to be acted upon adequately by the air blast. The fans or vanes above the crushing zone also assist in this process. The suction I of the air thus picks up the loose particles and carries them up along the conical sides of the separating chamber, past the edge of the conical battle and up and around the inverted conical wall and thence out through the discharge passage. The size of material carried out from the chamber depends on the position of the slidable sleeve E If the sleeve E extends down far into the chamber, only small particles will be carried out. If the sleeve does not extend quite so far into the chamber, larger particles will be carried out. In any event, the particles picked or thrown up from the crushing zone and carried up into the housing will a great many of them be too big to be carried by the air current out by. the top of the baflle and then up through the passage and these particles will drop down into the conical baflle. They will slide down to push the valve flap to one side and pass from between it and the conical wall and thence drop back into the crushing zone. These particles, having lost their momentum, will pass down though the air blast and be swept clean of any fine particles adhering to them. Thus they will return to the crushing zone ready to be further reduced.

The slidably mounted sleeve as indicated above the baffle plate provides means for adjusting the size of the particles by controlling and varying the length of the path followed by the air and also by varying the direction of travel. It will be evident that under ordinary circumstances most of the adjustment as to size of the particles will be done by varying the rate of feed to the mill and by varying the amount of air passing through the separator and mill. The arrangement of the air duct or passage leading from the separator to the mill is such that the velocity and amount of air fed to the mill at any point thereabout is substantially equal to that at any other point, this being done by decreasing the cross sectional area of the air passage as it encircles the mill.

It will be evident that by the arrangement shown I am no longer dependent upon the usual separating screen which has a tendency to wear out and permit ever increasing sizes of particles to pass through and at the same time has a tendency to become stopped up when moist or sticky materials are used.

I claim:

1. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extendingupwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding 1 cans comprising an annular flexible wallmounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the upright cone adjacent its lower edge to close the space between the cones, said wall being free to open outwardly and downwardly to permit the passage of material downwardly along the surface of the upright cone, but held against inward movement by its contact along its lower edge with the upright cone.

2. The combination with a deflector comprising two cones mounted one upon the other and an annular space between them of yielding means comprising a flexible wall mounted about the lower edge of one of said cones and depending downwardly therefrom and resting upon the upper surface of the other for closing the space between them.

A. deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means for closing the space between the cones;

l. A deflectorcomprising-two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular wall for closing the space between'the cones. I

5. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its'base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular flexible wall for closing the space between the cones.

6. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface ofvthe upright cone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone for closing the space between the cones.

7 A deflector comprisin two cones, one upright, the other inverte truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the sur- 7 face of the upright cone and yielding means comprising anannular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom for closing the space between the cones. V

8. A deflector comprising two cones, one

upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the upright cone for closing the space between the cones.

9. A deflector comprisingtwo cones, one

upright, the other inverted, truncated and mounted on butspaced from the upright cone, the truncated cone extending upwardly 3 above the upper surface of the upright cone, and projectingtoutwardly beyond its base,

the lower edge of thetruncated'cone being located adjacent thelower edge of the surface of the upright cone and yielding means comprising an annular flexible wallmountedabou't the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the up- 7 right cone'adjacen't its lower edge for closing the space between the cones.

10. A deflector comprising two cones, one

upright, the other inverted, truncated and mounted on but spaced fromthe upright cone, the truncated cone extending upwardly above theupper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being. located adjacent the lower edge of the surface of the uprightcone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the upright cone adjacent its lower edge to close the space between the cones, said wall bemg free to open outwardly. j r j 11. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base,

the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the uppersurface of theupright cone adjacent its lower edge to close the space between the-cones, said wall being free to open outwardly and downwardly.

12. A deflector comprising two cones, one

upright, the otherrinverted, truncated and V mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyondits base,

the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprisingan annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the upright cone adjacent its lower "edge to close the space between the cones, said wall being free to openoutwardlv and downwardly to permit the passage of materiah '13. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the u 3 er surface of the u ari ht cone and projecting outwardly beyond its base, the lower edge of the truncated. cone being located adjacent the lower edge ofthe surface of the upright cone and yielding means comprising an annular flexible wall mount ed about the lower edge of the truncated cone depending downwardly therefrom and resting upon the'upper surface of the upright cone adjacent its lower edge to close the space between the cones, said wall being free to open outwardly and downwardly to permit the passage of material downwardly.

1 A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and resting upon the upper surface of the upright cone adjacent its lower edge to close the space between the cones, said wall being free to open outwardly and downwardly to per mit the vpassage of material downwardly along the surface of the upright cone.

15. A deflector comprising two cones, one upright, the other inverted, truncated and mounted on but spaced from the upright cone, the truncated cone extending upwardly above the upper surface of the upright cone and projecting outwardly beyond its base, the lower edge of the truncated cone being located adjacent the lower edge of the surface of the upright cone and yielding means comprising an annular flexible wall mounted about the lower edge of the truncated cone depending downwardly therefrom and rest ing upon the upper surface of the upright cone adjacent its lower edge to close the space between the cones, said wall being free to open outwardly and downwardly to permit the passage of material downwardly along the surface of the upright cone, but held against inward movement.

16. A deflector comprising two cones, one truncated, and mounted on the other but spaced therefrom, and'yielding means for closing the space between them, the truncated cone extending upwardly above the upper surface of the other cone, the closing means comprising a flexible valve ring mounted about the lower edge of the trunated cone and depending downwardly upon the former cone.

17. The combination with a separating chamber of means for feeding air and dust upwardly from the bottom thereof, means for withdrawing them from the top thereof, a deflector located intermediate said means extending across the separating chamher and in the path of the air current, said deflector being smaller in cross sectional area than the separating chamber located sub stantially in a plane perpendicular to the central axis of the chamber and the normal path of the air and comprising a conical baffle alate the aoex of which DOiIltS u l l l ward, a truncated conical guard concentric with said bafiie plate and mounted thereon but spaced therefrom and an air trap to close said space against the upward move ment of the air.

Signed at Dixon, Illinois, this second dav of May 1912. a

' EDWARD J. STEOKLE. Witnesses HERBERT lV. Room I. R. DIVINE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

